General Science MCQ-58

Science IAS Prelims,IBPS,SBI,UPSC,SSC,Railways,KPSC,NCERT,CBSE

Which type of succession would probably result after a prescribed burn of mature Jack Pine in northern Michigan?

Primary

Secondary

Tertiary

None of these

What is the term for the maximum number of individuals that an area can support indefinitely?

Biotic potential

Carrying capacity

Niche

Maximum density

Which of the following represents the most complex level?

Community

Species

Ecosystem

Population

Which of the following lists include only abiotic environmental factors?

Food, temperature, fire, wind

Soil minerals, oxygen level, light, predators

Wind, rainfall, temperature, soil minerals

Light, food, predators, competitors

In whitetail deer populations in Michigan, individuals most often show a ____ pattern of dispersion,

Clumped

Banded

Uniform

Random

All of the organisms living in a particular area make up

A food chain

A population

A biological community

A biosphere

An organism’s ”tropic” level refers to ______.

The rate at which it uses energy

Where it lives

What it eats

Whether it is early or late in ecological succession

The niche of an animal is best defined as?

The number of individuals of the species the environment will support

The same as its habitat

All the ways an animal fits into its environment

The specific place within the habitat where the animal lives

Alichen is actually composed of two organisms

Parasitism

Mutualism

Commensalism

Symbiosis

The term used for the conservation of ecosystems and natural habitats and the maintenance and recovery of viable populations of species in their natural surroundings is

Core conservation

In-situ conservation

Ex-situ conservation

Peripheral conservation

Project Tiger, a programme to maintain a viable population of tigers in the country and to chalk out areas for their habitat, was launched in the year

75

73

74

71

Sea turtles are called living fossils for they have been on the earth in their present form for over 150 million years. of the five species of sea turtles found in the waters of the Indian subcontinent, which is the most populous species?

Keneps Ridley

Loggerhead

Olive Ridley

Flatback

The Giant Panda is the official symbol of the WWF (World Wide Fund for Nature). In which country is this animal found?

China

India

Myanmar

New Zealand

The Gir forest was declared a protected area to ensure the safety of this animal and to protect its last habitat. This forest in Gujarat is famous for

Lion

Tiger

Leopard

Elephant

An endangered animal, the Elephas maximus is now predominantly found in the protected wildlife sanctuaries and national parks of Kerala, Karnataka, and Orissa. ^ common name is

Black buck

Asian elephant

Wild buffalo

None of these

One of the following bird species was thought to be extinct but has been rediscovered in India by the BNHS (Bombay Natural History Society) in Name the species.

Pink-headed Duck

Himalayan Mountain Quail

Forest Owlet

Masked Finfoot

Which of the following species of rhinoceros is said to be the most critically endangered species.

Indian one-horned rhinos

Javan rhino

African black rhinol

Sumatran rhino

Mangroves are salt-tolerant forest ecosystems. Name the largest mangrove forests in the world that constitute 7% of the world’s mangroves, house a variety of wildlife sanctuaries, and are also a potential site to harness tidal energy.

The Sunderbans in West Bengal

Muisue Forests in Ecuador

The Mekong Delta in Vietnam

None of these

This state with the largest forest cover in the country is also the second-richest in mineral deposits. Its forests are being destroyed due to effects of open-cast mining of coal, iron ore, bauxite, and copper. Name it.

Uttar Pradesh

Himachal Pradesh

Arunachal Pradesh

Madhya Pradesh

There are three kinds of deserts in India: sand desert, salt desert, and cold desert. One of the states has a cold desert. Name it.

Jammu and Kashmir

Himachal Pradesh

Rajasthan

Gujarat

Evergreen forests in India house the most diverse species of plants and animals in the country and have two of the biodiversity hotspots of the world. Which of the f olio wing is NOT a region of evergreen forests in India?

North-east India

Andaman and Nicobar Islands

Lakshadweep Islands

None of these

The following pollutant is not contained in the vehicular exhaust emissions:

Lead

Ammonia

Carbon monoxide

Particulate matter

Environmentalfriendlinessofavehiclecouldbemeasured by the amount of pollutants it emits per passenger per kilometer travelled. Rate the environmental friendliness (1 = best & 4 = worst) of the following vehicles as per this criterion: Car : scooter : bus : bicycle

4:3:2:1

2 : 3 : 4 : 1

3 : 2 : 4 : 1

4 : 2 : 3 : 1

Diesel exhaust is the main source of three highly toxic pollutants that have a widespread impact on the urban air quality and human health. Name them

SPM, Sulphur dioxide and Nitrogen oxides (NOx)

Suspended particulate matter(SPM), benzene

Sulphur dioxide, Ammonia, Benzene

Lead, NOx,CO2

Earlier, leaded petrol used to be the most widespread, though easily preventable, source of urban air pollution in the world. According to WHO (World Health Organization), 15- million children in the developing countries are already suffering from permanent brain damage due to lead poisoning. Why is tetra-ethyl lead added to petrol?